./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c --full-output --traceabstraction.commutativity.condition.synthesis SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1c4755c5 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e --traceabstraction.commutativity.condition.synthesis SUFFICIENT -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.3.0-dev-1c4755c-m [2024-12-17 15:57:57,895 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-17 15:57:57,944 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-12-17 15:57:57,948 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-17 15:57:57,948 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-17 15:57:57,967 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-17 15:57:57,968 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-17 15:57:57,968 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-17 15:57:57,968 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-17 15:57:57,969 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-17 15:57:57,969 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-17 15:57:57,970 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-17 15:57:57,970 INFO L153 SettingsManager]: * Use SBE=true [2024-12-17 15:57:57,970 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-17 15:57:57,970 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-17 15:57:57,970 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-17 15:57:57,971 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-17 15:57:57,971 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-17 15:57:57,971 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-17 15:57:57,971 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-17 15:57:57,971 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-17 15:57:57,971 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-17 15:57:57,971 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-17 15:57:57,971 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-17 15:57:57,971 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-17 15:57:57,971 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-17 15:57:57,971 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-17 15:57:57,971 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-17 15:57:57,971 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-17 15:57:57,971 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-17 15:57:57,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 15:57:57,972 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-17 15:57:57,972 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-17 15:57:57,972 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-17 15:57:57,972 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-12-17 15:57:57,972 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-17 15:57:57,972 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-17 15:57:57,972 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-12-17 15:57:57,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-17 15:57:57,972 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-17 15:57:57,972 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-12-17 15:57:57,972 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-12-17 15:57:57,972 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-12-17 15:57:57,973 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> SUFFICIENT [2024-12-17 15:57:58,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-17 15:57:58,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-17 15:57:58,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-17 15:57:58,197 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-17 15:57:58,197 INFO L274 PluginConnector]: CDTParser initialized [2024-12-17 15:57:58,198 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2024-12-17 15:57:59,283 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/68344ea04/9b8d82c69966481fa69746b314a24bde/FLAG7eb8e5560 [2024-12-17 15:57:59,493 INFO L384 CDTParser]: Found 1 translation units. [2024-12-17 15:57:59,493 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2024-12-17 15:57:59,506 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/68344ea04/9b8d82c69966481fa69746b314a24bde/FLAG7eb8e5560 [2024-12-17 15:57:59,833 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/68344ea04/9b8d82c69966481fa69746b314a24bde [2024-12-17 15:57:59,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-17 15:57:59,836 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-17 15:57:59,836 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-17 15:57:59,837 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-17 15:57:59,839 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-17 15:57:59,840 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:57:59" (1/1) ... [2024-12-17 15:57:59,840 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b8f325d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:57:59, skipping insertion in model container [2024-12-17 15:57:59,840 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:57:59" (1/1) ... [2024-12-17 15:57:59,849 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-17 15:57:59,963 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c[2730,2743] [2024-12-17 15:57:59,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-17 15:57:59,981 INFO L200 MainTranslator]: Completed pre-run [2024-12-17 15:58:00,000 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c[2730,2743] [2024-12-17 15:58:00,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-17 15:58:00,016 INFO L204 MainTranslator]: Completed translation [2024-12-17 15:58:00,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:58:00 WrapperNode [2024-12-17 15:58:00,017 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-17 15:58:00,018 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-17 15:58:00,018 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-17 15:58:00,018 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-17 15:58:00,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:58:00" (1/1) ... [2024-12-17 15:58:00,031 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:58:00" (1/1) ... [2024-12-17 15:58:00,052 INFO L138 Inliner]: procedures = 25, calls = 29, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 129 [2024-12-17 15:58:00,052 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-17 15:58:00,052 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-17 15:58:00,052 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-17 15:58:00,052 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-17 15:58:00,059 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:58:00" (1/1) ... [2024-12-17 15:58:00,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:58:00" (1/1) ... [2024-12-17 15:58:00,060 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:58:00" (1/1) ... [2024-12-17 15:58:00,060 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:58:00" (1/1) ... [2024-12-17 15:58:00,064 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:58:00" (1/1) ... [2024-12-17 15:58:00,065 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:58:00" (1/1) ... [2024-12-17 15:58:00,066 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:58:00" (1/1) ... [2024-12-17 15:58:00,067 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:58:00" (1/1) ... [2024-12-17 15:58:00,069 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:58:00" (1/1) ... [2024-12-17 15:58:00,071 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-17 15:58:00,071 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-17 15:58:00,071 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-17 15:58:00,071 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-17 15:58:00,072 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:58:00" (1/1) ... [2024-12-17 15:58:00,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-17 15:58:00,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 15:58:00,096 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-12-17 15:58:00,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-12-17 15:58:00,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-17 15:58:00,114 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-12-17 15:58:00,114 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-12-17 15:58:00,114 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-12-17 15:58:00,114 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-12-17 15:58:00,114 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-12-17 15:58:00,114 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-12-17 15:58:00,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-17 15:58:00,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-17 15:58:00,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-12-17 15:58:00,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-12-17 15:58:00,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-17 15:58:00,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-17 15:58:00,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-17 15:58:00,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-17 15:58:00,116 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-17 15:58:00,188 INFO L234 CfgBuilder]: Building ICFG [2024-12-17 15:58:00,190 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-17 15:58:00,427 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-17 15:58:00,427 INFO L283 CfgBuilder]: Performing block encoding [2024-12-17 15:58:00,594 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-17 15:58:00,594 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-17 15:58:00,594 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:58:00 BoogieIcfgContainer [2024-12-17 15:58:00,595 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-17 15:58:00,598 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-17 15:58:00,598 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-17 15:58:00,601 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-17 15:58:00,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 03:57:59" (1/3) ... [2024-12-17 15:58:00,602 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd225e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:58:00, skipping insertion in model container [2024-12-17 15:58:00,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:58:00" (2/3) ... [2024-12-17 15:58:00,603 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd225e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:58:00, skipping insertion in model container [2024-12-17 15:58:00,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:58:00" (3/3) ... [2024-12-17 15:58:00,604 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2024-12-17 15:58:00,614 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-17 15:58:00,616 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-three-array-sum.wvr.c that has 4 procedures, 33 locations, 1 initial locations, 6 loop locations, and 1 error locations. [2024-12-17 15:58:00,616 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-17 15:58:00,658 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-12-17 15:58:00,701 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 15:58:00,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-12-17 15:58:00,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 15:58:00,703 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-12-17 15:58:00,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-12-17 15:58:00,763 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-17 15:58:00,774 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-12-17 15:58:00,780 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2ad92d78, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-17 15:58:00,781 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-12-17 15:58:01,107 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 15:58:01,107 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 15:58:01,107 INFO L139 ounterexampleChecker]: Examining path program with hash -152741962, occurence #1 [2024-12-17 15:58:01,107 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 15:58:01,107 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 15:58:01,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 15:58:01,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1656455225, now seen corresponding path program 1 times [2024-12-17 15:58:01,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 15:58:01,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700342622] [2024-12-17 15:58:01,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 15:58:01,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 15:58:01,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 15:58:01,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-17 15:58:01,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 15:58:01,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700342622] [2024-12-17 15:58:01,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700342622] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 15:58:01,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 15:58:01,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-17 15:58:01,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768069378] [2024-12-17 15:58:01,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 15:58:01,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-17 15:58:01,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 15:58:01,541 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-17 15:58:01,541 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-17 15:58:01,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:58:01,542 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 15:58:01,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 15:58:01,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:58:01,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:58:01,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-17 15:58:01,627 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 15:58:01,627 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 15:58:01,627 INFO L139 ounterexampleChecker]: Examining path program with hash -152741962, occurence #2 [2024-12-17 15:58:01,627 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 15:58:01,628 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 15:58:01,628 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 15:58:01,628 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 2 [2024-12-17 15:58:01,628 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 15:58:01,628 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 7 [2024-12-17 15:58:01,642 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:58:01,642 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-12-17 15:58:01,642 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:58:01,642 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-12-17 15:58:01,642 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:58:01,642 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2024-12-17 15:58:01,703 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-17 15:58:01,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 61 [2024-12-17 15:58:01,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 30 [2024-12-17 15:58:01,752 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-17 15:58:01,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 30 [2024-12-17 15:58:01,774 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-17 15:58:01,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 54 [2024-12-17 15:58:01,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2024-12-17 15:58:01,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2024-12-17 15:58:01,815 INFO L349 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2024-12-17 15:58:01,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 1 [2024-12-17 15:58:01,831 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-17 15:58:01,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 54 [2024-12-17 15:58:01,890 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-12-17 15:58:01,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 1 [2024-12-17 15:58:01,895 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2024-12-17 15:58:01,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 1 [2024-12-17 15:58:02,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 15:58:02,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1893962161, now seen corresponding path program 1 times [2024-12-17 15:58:02,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-17 15:58:02,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381447260] [2024-12-17 15:58:02,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 15:58:02,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 15:58:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 15:58:03,104 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-17 15:58:03,104 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-17 15:58:03,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381447260] [2024-12-17 15:58:03,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381447260] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 15:58:03,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [24670666] [2024-12-17 15:58:03,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 15:58:03,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 15:58:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 15:58:03,136 INFO L256 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-17 15:58:03,139 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 15:58:03,239 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-17 15:58:03,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [24670666] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 15:58:03,239 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-17 15:58:03,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-12-17 15:58:03,240 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-17 15:58:03,240 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2024-12-17 15:58:03,240 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 15:58:03,240 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2024-12-17 15:58:03,240 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 15:58:03,240 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2024-12-17 15:58:03,240 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:58:03,240 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 15:58:03,240 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 15:58:03,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 15:58:03,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1422748963, now seen corresponding path program 1 times [2024-12-17 15:58:03,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 15:58:03,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377345880] [2024-12-17 15:58:03,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 15:58:03,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 15:58:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 15:58:03,436 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-17 15:58:03,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 15:58:03,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377345880] [2024-12-17 15:58:03,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377345880] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 15:58:03,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145851869] [2024-12-17 15:58:03,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 15:58:03,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 15:58:03,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 15:58:03,439 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-17 15:58:03,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-17 15:58:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 15:58:03,535 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-17 15:58:03,537 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 15:58:03,621 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-17 15:58:03,622 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 15:58:03,684 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-17 15:58:03,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145851869] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 15:58:03,684 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-17 15:58:03,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-12-17 15:58:03,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39293728] [2024-12-17 15:58:03,685 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-17 15:58:03,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-17 15:58:03,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 15:58:03,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-17 15:58:03,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-12-17 15:58:03,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:58:03,686 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 15:58:03,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.0) internal successors, (70), 13 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 15:58:03,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:58:03,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:58:03,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:58:03,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 15:58:03,830 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-17 15:58:04,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,SelfDestructingSolverStorable2,SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 15:58:04,025 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 15:58:04,025 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 15:58:04,025 INFO L139 ounterexampleChecker]: Examining path program with hash -152741962, occurence #3 [2024-12-17 15:58:04,025 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 15:58:04,025 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 15:58:04,025 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 15:58:04,025 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2024-12-17 15:58:04,025 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 15:58:04,025 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2024-12-17 15:58:04,025 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:58:04,025 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-12-17 15:58:04,025 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:58:04,025 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-12-17 15:58:04,025 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:58:04,026 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2024-12-17 15:58:04,072 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-17 15:58:04,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 61 [2024-12-17 15:58:04,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 30 [2024-12-17 15:58:04,113 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-17 15:58:04,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 54 [2024-12-17 15:58:04,145 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2024-12-17 15:58:04,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 1 [2024-12-17 15:58:04,150 INFO L349 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2024-12-17 15:58:04,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 1 [2024-12-17 15:58:04,160 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2024-12-17 15:58:04,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 1 [2024-12-17 15:58:04,166 INFO L349 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2024-12-17 15:58:04,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 1 [2024-12-17 15:58:04,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2024-12-17 15:58:04,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2024-12-17 15:58:04,180 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-12-17 15:58:04,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 1 [2024-12-17 15:58:05,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 15:58:05,219 INFO L85 PathProgramCache]: Analyzing trace with hash 217592566, now seen corresponding path program 1 times [2024-12-17 15:58:05,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2024-12-17 15:58:05,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871684738] [2024-12-17 15:58:05,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 15:58:05,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 15:58:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 15:58:05,360 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-17 15:58:05,360 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2024-12-17 15:58:05,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871684738] [2024-12-17 15:58:05,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871684738] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 15:58:05,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1765365645] [2024-12-17 15:58:05,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 15:58:05,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 15:58:05,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 15:58:05,382 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-17 15:58:05,384 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 15:58:05,472 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-17 15:58:05,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1765365645] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 15:58:05,473 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-17 15:58:05,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-12-17 15:58:05,473 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2024-12-17 15:58:05,473 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2024-12-17 15:58:05,473 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 15:58:05,473 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 38 [2024-12-17 15:58:05,473 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 15:58:05,473 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2024-12-17 15:58:05,473 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:58:05,473 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 15:58:05,474 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 15:58:05,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 15:58:05,474 INFO L85 PathProgramCache]: Analyzing trace with hash 2004052423, now seen corresponding path program 2 times [2024-12-17 15:58:05,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 15:58:05,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510688810] [2024-12-17 15:58:05,474 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 15:58:05,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 15:58:05,492 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-17 15:58:05,492 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 15:58:05,594 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-17 15:58:05,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 15:58:05,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510688810] [2024-12-17 15:58:05,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510688810] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 15:58:05,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 15:58:05,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-17 15:58:05,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796792713] [2024-12-17 15:58:05,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 15:58:05,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-17 15:58:05,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 15:58:05,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-17 15:58:05,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-17 15:58:05,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:58:05,595 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 15:58:05,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 15:58:05,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:58:05,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 15:58:05,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:58:05,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:58:05,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 15:58:05,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 15:58:05,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,SelfDestructingSolverStorable6,SelfDestructingSolverStorable5 [2024-12-17 15:58:05,737 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 15:58:05,737 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 15:58:05,738 INFO L139 ounterexampleChecker]: Examining path program with hash -326228791, occurence #1 [2024-12-17 15:58:05,738 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 15:58:05,738 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 15:58:05,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 15:58:05,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1086210327, now seen corresponding path program 3 times [2024-12-17 15:58:05,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 15:58:05,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929601258] [2024-12-17 15:58:05,738 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-17 15:58:05,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 15:58:05,768 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-12-17 15:58:05,768 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 15:58:05,919 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-17 15:58:05,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 15:58:05,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929601258] [2024-12-17 15:58:05,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929601258] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 15:58:05,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 15:58:05,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-17 15:58:05,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722686499] [2024-12-17 15:58:05,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 15:58:05,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-17 15:58:05,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 15:58:05,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-17 15:58:05,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-17 15:58:05,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:58:05,921 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 15:58:05,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 15:58:05,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:58:05,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 15:58:05,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-17 15:58:05,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:58:06,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:58:06,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 15:58:06,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 15:58:06,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-17 15:58:06,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-17 15:58:06,237 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 15:58:06,238 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 15:58:06,238 INFO L139 ounterexampleChecker]: Examining path program with hash -1659180464, occurence #1 [2024-12-17 15:58:06,238 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 15:58:06,238 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 15:58:06,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 15:58:06,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1122561590, now seen corresponding path program 1 times [2024-12-17 15:58:06,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 15:58:06,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394688636] [2024-12-17 15:58:06,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 15:58:06,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 15:58:06,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 15:58:06,388 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-17 15:58:06,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 15:58:06,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394688636] [2024-12-17 15:58:06,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394688636] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 15:58:06,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621366329] [2024-12-17 15:58:06,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-17 15:58:06,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 15:58:06,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 15:58:06,390 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-17 15:58:06,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-17 15:58:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-17 15:58:06,477 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-17 15:58:06,479 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 15:58:06,605 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-17 15:58:06,605 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 15:58:06,687 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-17 15:58:06,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621366329] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 15:58:06,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-17 15:58:06,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2024-12-17 15:58:06,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326011887] [2024-12-17 15:58:06,688 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-17 15:58:06,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-17 15:58:06,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 15:58:06,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-17 15:58:06,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2024-12-17 15:58:06,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:58:06,689 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 15:58:06,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.2631578947368425) internal successors, (100), 18 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 15:58:06,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:58:06,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 15:58:06,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-17 15:58:06,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-12-17 15:58:06,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:58:06,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:58:06,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 15:58:06,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 15:58:06,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-17 15:58:06,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 15:58:06,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-17 15:58:07,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 15:58:07,014 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 15:58:07,014 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 15:58:07,014 INFO L139 ounterexampleChecker]: Examining path program with hash -1659180464, occurence #2 [2024-12-17 15:58:07,014 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 15:58:07,014 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 15:58:07,014 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 15:58:07,014 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-12-17 15:58:07,014 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 15:58:07,014 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-12-17 15:58:07,015 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:58:07,015 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-12-17 15:58:07,015 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:58:07,015 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-12-17 15:58:07,015 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:58:07,015 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2024-12-17 15:58:07,015 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 15:58:07,015 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2024-12-17 15:58:07,015 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 15:58:07,015 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 57 [2024-12-17 15:58:07,015 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 15:58:07,015 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 58 [2024-12-17 15:58:07,015 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 15:58:07,015 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 60 [2024-12-17 15:58:07,015 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:58:07,015 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 15:58:07,015 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 15:58:07,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 15:58:07,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1575301266, now seen corresponding path program 2 times [2024-12-17 15:58:07,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 15:58:07,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587093590] [2024-12-17 15:58:07,015 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 15:58:07,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 15:58:07,051 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-17 15:58:07,051 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 15:58:07,190 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-12-17 15:58:07,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 15:58:07,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587093590] [2024-12-17 15:58:07,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587093590] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 15:58:07,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439942141] [2024-12-17 15:58:07,190 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-17 15:58:07,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 15:58:07,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 15:58:07,192 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-17 15:58:07,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-17 15:58:07,277 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-17 15:58:07,278 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 15:58:07,279 INFO L256 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-17 15:58:07,281 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 15:58:07,408 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-12-17 15:58:07,409 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-17 15:58:07,503 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-12-17 15:58:07,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439942141] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-17 15:58:07,504 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-17 15:58:07,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2024-12-17 15:58:07,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480695744] [2024-12-17 15:58:07,504 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-17 15:58:07,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-17 15:58:07,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 15:58:07,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-17 15:58:07,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-12-17 15:58:07,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:58:07,505 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 15:58:07,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.368421052631579) internal successors, (102), 18 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 15:58:07,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:58:07,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 15:58:07,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-17 15:58:07,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-12-17 15:58:07,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-17 15:58:07,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:58:07,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:58:07,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 15:58:07,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 15:58:07,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-17 15:58:07,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 15:58:07,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-17 15:58:07,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-17 15:58:07,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 15:58:07,918 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 15:58:07,918 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 15:58:07,919 INFO L139 ounterexampleChecker]: Examining path program with hash -1659180464, occurence #3 [2024-12-17 15:58:07,919 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2024-12-17 15:58:07,919 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2024-12-17 15:58:07,919 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 15:58:07,919 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2024-12-17 15:58:07,919 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 15:58:07,919 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2024-12-17 15:58:07,919 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:58:07,919 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2024-12-17 15:58:07,919 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:58:07,919 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2024-12-17 15:58:07,919 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:58:07,919 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2024-12-17 15:58:07,919 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 15:58:07,919 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 40 [2024-12-17 15:58:07,919 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 15:58:07,919 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 50 [2024-12-17 15:58:07,919 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 15:58:07,919 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 67 [2024-12-17 15:58:07,919 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 15:58:07,919 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 68 [2024-12-17 15:58:07,919 INFO L209 ounterexampleChecker]: No commutativity condition found. [2024-12-17 15:58:07,919 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 70 [2024-12-17 15:58:07,919 WARN L190 ounterexampleChecker]: Statements were already independent. [2024-12-17 15:58:07,919 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2024-12-17 15:58:07,919 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 15:58:07,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 15:58:07,919 INFO L85 PathProgramCache]: Analyzing trace with hash -948620021, now seen corresponding path program 3 times [2024-12-17 15:58:07,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 15:58:07,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429669864] [2024-12-17 15:58:07,920 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-17 15:58:07,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 15:58:07,944 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-12-17 15:58:07,944 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 15:58:08,091 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-12-17 15:58:08,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 15:58:08,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429669864] [2024-12-17 15:58:08,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429669864] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 15:58:08,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 15:58:08,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-17 15:58:08,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989189816] [2024-12-17 15:58:08,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 15:58:08,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-17 15:58:08,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 15:58:08,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-17 15:58:08,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-17 15:58:08,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:58:08,092 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 15:58:08,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 15:58:08,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:58:08,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 15:58:08,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-17 15:58:08,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-12-17 15:58:08,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-17 15:58:08,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-17 15:58:08,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:58:08,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:58:08,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 15:58:08,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 15:58:08,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-17 15:58:08,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 15:58:08,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-17 15:58:08,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 15:58:08,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-17 15:58:08,236 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 15:58:08,236 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 15:58:08,236 INFO L139 ounterexampleChecker]: Examining path program with hash 508836552, occurence #1 [2024-12-17 15:58:08,236 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 15:58:08,236 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 15:58:08,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 15:58:08,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1202575151, now seen corresponding path program 4 times [2024-12-17 15:58:08,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 15:58:08,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313888458] [2024-12-17 15:58:08,237 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-17 15:58:08,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 15:58:08,252 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-17 15:58:08,252 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 15:58:08,355 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-17 15:58:08,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 15:58:08,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313888458] [2024-12-17 15:58:08,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313888458] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-17 15:58:08,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-17 15:58:08,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-17 15:58:08,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283290896] [2024-12-17 15:58:08,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-17 15:58:08,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-17 15:58:08,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-17 15:58:08,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-17 15:58:08,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-17 15:58:08,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:58:08,356 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-17 15:58:08,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-17 15:58:08,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:58:08,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 15:58:08,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-17 15:58:08,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-12-17 15:58:08,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-12-17 15:58:08,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-12-17 15:58:08,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-12-17 15:58:08,356 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-17 15:58:08,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-17 15:58:08,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 15:58:08,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 15:58:08,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-17 15:58:08,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-17 15:58:08,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-17 15:58:08,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-17 15:58:08,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-17 15:58:08,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-17 15:58:08,476 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-12-17 15:58:08,476 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-12-17 15:58:08,476 INFO L139 ounterexampleChecker]: Examining path program with hash -328756146, occurence #1 [2024-12-17 15:58:08,476 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-12-17 15:58:08,476 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-12-17 15:58:08,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-17 15:58:08,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1084224370, now seen corresponding path program 4 times [2024-12-17 15:58:08,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-17 15:58:08,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184163459] [2024-12-17 15:58:08,477 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-17 15:58:08,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-17 15:58:08,525 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-17 15:58:08,525 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 15:58:09,829 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-17 15:58:09,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-17 15:58:09,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184163459] [2024-12-17 15:58:09,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184163459] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-17 15:58:09,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381516675] [2024-12-17 15:58:09,829 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-17 15:58:09,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-17 15:58:09,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2024-12-17 15:58:09,832 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-17 15:58:09,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-17 15:58:10,016 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-17 15:58:10,016 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-17 15:58:10,020 INFO L256 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-12-17 15:58:10,024 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-17 15:58:10,450 INFO L349 Elim1Store]: treesize reduction 36, result has 52.0 percent of original size [2024-12-17 15:58:10,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 54 [2024-12-17 15:58:11,208 INFO L349 Elim1Store]: treesize reduction 132, result has 35.6 percent of original size [2024-12-17 15:58:11,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 121 treesize of output 144 [2024-12-17 15:58:13,036 INFO L349 Elim1Store]: treesize reduction 370, result has 27.6 percent of original size [2024-12-17 15:58:13,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 3 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 53 case distinctions, treesize of input 304 treesize of output 310 [2024-12-17 16:10:37,679 WARN L286 SmtUtils]: Spent 12.30m on a formula simplification. DAG size of input: 7493 DAG size of output: 6773 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-12-17 16:10:37,682 INFO L349 Elim1Store]: treesize reduction 4560, result has 81.3 percent of original size [2024-12-17 16:10:37,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 127 select indices, 127 select index equivalence classes, 6 disjoint index pairs (out of 8001 index pairs), introduced 127 new quantified variables, introduced 8001 case distinctions, treesize of input 2720 treesize of output 20856 [2024-12-17 16:10:45,327 WARN L286 SmtUtils]: Spent 7.62s on a formula simplification. DAG size of input: 7080 DAG size of output: 7079 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-17 16:10:53,069 WARN L286 SmtUtils]: Spent 7.47s on a formula simplification that was a NOOP. DAG size: 7083 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Killed by 15